- A new kubelet metric `image_pull_duration_seconds` was added. The metric tracks the duration (in seconds) it takes for an image to be pulled, including the time spent in the waiting queue of image puller. The metric is broken down by bucketed image size. ([#121719](https://github.com/kubernetes/kubernetes/pull/121719), [@ruiwen-zhao](https://github.com/ruiwen-zhao))

- Cloud controller manager's node controller now emits timing metrics for initial `Node` synchronization. These metrics measure the delay between the creation of a new `Node` and the node controller's initial management actions, such as removing the cloud provider taint. These metrics should be consulted when setting cloud controller manager's `--concurrent-node-syncs` flag. ([#119241](https://github.com/kubernetes/kubernetes/pull/119241),...

	numRulesFloat, err := testutil.GetGaugeMetricValue(metrics.IPTablesRulesTotal.WithLabelValues(string(tableName)))
	if err != nil {
		logger.Error(err, "metrics are not registered?")
		return -1
	}
	return int(numRulesFloat)
}

func countRulesFromLastSyncMetric(logger klog.Logger, tableName utiliptables.Table) int {
	numRulesFloat, err := testutil.GetGaugeMetricValue(metrics.IPTablesRulesLastSync.WithLabelValues(string(tableName)))

- Improved misleading message, in case of no metrics received for the `HPA` controlled pods. ([#114740](https://github.com/kubernetes/kubernetes/pull/114740), [@kushagra98](https://github.com/kushagra98))
- Introduced new metrics removing the redundant subsystem in kube-apiserver pod logs metrics and deprecate the original ones:

- Adds `apiserver_watch_list_duration_seconds` metrics. Which will measure response latency distribution in seconds for watch list requests broken by group, version, resource and scope ([#120490](https://github.com/kubernetes/kubernetes/pull/120490), [@p0lyn0mial](https://github.com/p0lyn0mial)) [SIG API Machinery and Instrumentation]

                  metrics server should bind to. [Default: 9091]'
                type: integer
              prometheusProcessMetricsEnabled:
                description: 'PrometheusProcessMetricsEnabled disables process metrics
                  collection, which the Prometheus client does by default, when set
                  to false. This reduces the number of metrics reported, reducing

- [`KT-65347`](https://youtrack.jetbrains.com/issue/KT-65347) K/N has not been dowloaded before :commonizeNativeDistribution
- [`KT-65213`](https://youtrack.jetbrains.com/issue/KT-65213) Collect logic for FUS metrics calculation in one place
- [`KT-61698`](https://youtrack.jetbrains.com/issue/KT-61698) Compiler options configured inside metadata {} target set up all targets in a project

	// If nil, a default scheduler is chosen.
	NewWriteScheduler func() http2WriteScheduler

	// CountError, if non-nil, is called on HTTP/2 server errors.
	// It's intended to increment a metric for monitoring, such
	// as an expvar or Prometheus metric.
	// The errType consists of only ASCII word characters.
	CountError func(errType string)

	// Internal state. This is a pointer (rather than embedded directly)